Re: [RFI] FM Wireless Mic on 144.160MHz

[Alex <alex@kr1st.com>]

Good information, Mike. Thanks!

73,
--Alex KR1ST

On 2020-08-28 22:34, Michael Aust via RFI wrote:
> Don Here a wireless Mic transmitter 72MHz to 75MHz x2 2nd Harmonic in
> the 2meter Ham Band 
> https://www.listentech.com/shop/product/portable-display-rf-transmitter-lt-700-072/
> 73MikeWB6DJI 
>
> Sent from AOL Mobile Mail
> Get the new AOL app: mail.mobile.aol.com
>  On Friday, August 28, 2020, Don <kb5kwv@gmail.com> wrote:
>
> Check 72.08 to see if it is the second harmonic of a 72Mhz mic or
> auditory hearing device. I had one they put in the top of the church,
> and it could be heard for a long ways around on the harmonic.
>
> A quick talk to the pastor, and I helped him change the frequency to
> something where the second harmonic would not bother.
>
>
> On 8/28/2020 7:43 PM, Alex wrote:
> > Hi there,
> >
> > A local church has a FM microphone that is transmitting on 144.160MHz,
> > and I can also hear it 20kHz above and below that frequency. I'm not
> > sure if 144.160MHz is the principal signal or if it's some mixing
> > product. Would anyone know what brand/model wireless microphone would
> > cause this?
> >
> > It wasn't much of a problem when they only used it on Sunday mornings,
> > but they have a ton of activities now and they use that microphone a
> > lot more. Tonight is movie night and the mic is on...
> >
> > 73,
> > --Alex KR1ST
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